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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A038869 Primes p such that both p-2 and 2p-1 are prime.

Table of values

n a(n)
1 7
2 19
3 31
4 139
5 199
6 229
7 271
8 601
9 619
10 661
11 811
12 829
13 1279
14 1429
15 1609
16 2029
17 2089
18 2131
19 2311
20 2551
21 2791
22 3169
23 3331
24 3391
25 3529
26 3769
27 4051
28 4159
29 4231
30 4261
31 4339
32 4639
33 4801
34 5419
35 5479
36 5659
37 5851
38 6271
39 6301
40 6361
41 6691
42 6961
43 7561
44 7951
45 8539

List of values

[7, 19, 31, 139, 199, 229, 271, 601, 619, 661, 811, 829, 1279, 1429, 1609, 2029, 2089, 2131, 2311, 2551, 2791, 3169, 3331, 3391, 3529, 3769, 4051, 4159, 4231, 4261, 4339, 4639, 4801, 5419, 5479, 5659, 5851, 6271, 6301, 6361, 6691, 6961, 7561, 7951, 8539]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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